Question

\(\left|x\right|< 2\)

Answer 1

\(\left|x\right|< 2\)

\(\Leftrightarrow-2< x< 2\)

Answer 2

`|x|<2`

`x^2<4`

`x^2-4<0`

`(x+2)(x-2)<0`

`-2<x<2`.

Answer 3

|x|<2

x∈{0,1,2,-1,-2}

Answer 4

Ta có: |x|<2

nên \(\left\{{}\begin{matrix}x>-2\\x< 2\end{matrix}\right.\Leftrightarrow-2< x< 2\)

Answer 5

➩x ∈ { 0,1,-1}